Container and end closure therefor and method of making



B. F. SIR

Oct 1 0, 1944.

CONTAINER AND END CLOSURE THEREFOR AND METHOD OF MAKING Filed Oct. 12, 1942 v INVENTOR. fie/War??? 51/ BY (M/(7% ORNEYJ.

v manipulation.

Second, to provide an end closure for containtermed.

. vention, and which Patented Oct 10, 1944 UNITED, STATES N PATENT OFF 2,359,882 ICE v AND METHOD OF MAKING CONTAINER AND END CLOSURE THEREFOR Bernard F. Sir, Benton Harbor, Mich, assignor to David Williams,'Fred Williams, Edwin N. Williams, and John C. Williams, doing business as Williams Brothers, St. Joseph, Mich, a copartnership Application October 12, 1942', Serial No.-.i61,713

8 Claims. (01. 229-55) This invention relates to improvements in containersand end closures therefor and method of making.

The main objects of this invention are: First, to provide an improved container formed entirely of fibrous stock in which the end closure, preferably the cover, may be repeatedly formed of flbrous material. This rim member has an intermediate cylindrical portion 1 adapted inserted and removed for opening and closing the container, and, although formed of relatively light stock, is suiliciently rigid to permit such ers formed entirely of fibrous material which is strong and rigid and permits repeated handling or manipulations.

Third, to provide a method of forming end closures which enables the very rapid and economical production thereof. 1 Further objects and advantages pertaining to details and economies of construction and operation will appear from the description to follow.

The invention is defined in the claims. Preferred embodiments of my invention are illustrated in the accompanying drawing, in which:

Fig. 1 is a side elevation of a container emwardly oiiset portion II) which constitutes an anfor telescoping engagement within the side walls of the container.- The wall member 5 is inserted within this rim member which closely embraces the edge of the wall member. The inner end of the rim member is turned inwardly into a, rounded bead-like portion 8 engaging the inner side of the wall member 5 while the outer end of the rim member is turned inwardly into a curved beadlike portion 9 which engages the wall member 5 in opposed relation to the inturned portion 8,- thus securely clamping member of the closure. The inturned portion 9 is joined to the cylindrical portion. 1 by anoutnular flange adapted to engage the end of the container when the closure is inserted therein, as shown in Fig. l.

In the Figs. 5, 6 and'l, I illustrate certain steps of my method of manufacture. The disk-like 'wall members 5 are preferably died or cut from sheets of suitablecontainer stock. The stock H bodying the features of my invention partially in longitudinal section and partially broken away. Fig. his a top-plan view of a modified form or embodiment of my invention. Fig.3 isan enlarged fragmentary view partially in vertical or longitudinal section of the embodiment of'my invention shown in Fig. 2. y

Fig. 4 is a plan view oi the blank oi the adiust- I able closure member of the embodiment of my invention shownin Figs. 2 and 3.

'Fig. 5 is a longitudinal section through the blank or stock in the form or a tube from which the rim member oi my improved end closure is Fig. 6 is a fragmentary sectional view illustrating'one or the steps, of forming the end closure. Fig. 'I is a fragmentary view illustrating a suefrom which the rim member is formed is cut from tubing formed of fibrous material of proper diameter for the particular container in which the end closm'e is to be used. This section or piece of stock II is positioned between die or forming members l2 and I3, with the end walldisk Bin position in the rim stock and the dies actuated,

- preferably simultaneouslintc form the clamping members 8 and 9 and the flange III. This operation'can be very rapidly performed and the closures produced are strong and rigid, even when formed of relatively light stock.

The disposition of the parts of the rim is such that the rim is made very rigid and the wall member is eflectively supported therein. The end ceeding step in the forming or the end closure of the embodiment oi'my invention shown in Fig. l. v Fig. 8 is a slightly modified embodiment of the invention shownin 1.

In the accompanying-drawing, the body'ot the container I is formed oi flbrous stock, this being a tubular container, The bottom 2 is provided closures or this character may be repeatedly inserted and removed irbmthe container andform a very close retaining joint therewith. Of course that involves the making of the end closures of p per diameter for the particular container in which they are to .be used.

In Figs. 2, 3 and 4, I illustrate a modification of my invention in which the closure is provided with an adjustable time member 14 disposed with is downturned peripheral. flange I which is and an'annularrim'member by the numeral], also of the-embodiment shown in a dish-like wall member 5 oi upon the closure wall member I! for rotative. ad- 1 justment. The members I and I! have open lugs 16 and 11 therein adapted to be brought into or out of register for dispensing the contents-oi the container. In this embodiment, the wall member II is provided with. downtumed peripheral flange II, the lower endv I! or the rim member 20 being clamped around this flange I l asshown in Fig. 3. The upper end of the rim member 20" is-turned inwardly at 2| and conformed to provide the flange 22 substantially as described ,i'or .the embodiment previously 'de- However. retaining bead 2| and supporting the wall.

' claim as new and desire to ent is:

is iormed, the disk-like closure member is is superimposed upon the closure wall member II and the bead II is so formed that it does not clamp tially cylindrical intermediate portion for insertion within a container, and inner and outer inturned end portions of rounded section disposed the removable closure member so as to prevent its rotative adjustment. This clearance is illustrated in Fig. 3, but it will be understood that there is more clearance shown than would ordinarily be present.

The adjustable closure member I4 is formed 01' fibrous stock scored at 28 and I4 and notched at 25 to permit the folding of this scored portion into a handle or fingerpiece I}. The notches pro-.

' vide-cut away portions 21 at the ends of the-fin gerpiece' which permit the inturning oi the bead II. This embodiment of my invention is desirable for certain types of containers, particularly dispensing containers in which it is unnecessary to completely remove the end closure in order to afford access to the contents.

In Fig. 8 the wall member II ha flange II also disposed with the flange upwardly.

in opposed clamping supporting engagement with said closure wall member, the outer end portion being joined to said cylindrical intermediate portion by an outwardly onset portion constituting a wall engaging flange to position the closure This provides a desirable structure when extra strength or rigidity is desired.- While theclosure can be easily inserted and removed, ordinarily without the aid of tools, it is at the same time very securely retained and provides an effective sealing closure. v

within .a container. I

4. An end closure ior telescoping within a container, comprising a disk-like wall member of fibrous material and an annular rim member also oi fibrous material closely embracing the edge of said closure wall member and having a substantially cylindrical intermediate portion for insertion within a container, and inner and outerinturned-end portions disposed in opposed clamping supporting engagement with said closure wall member, the outer end portion being outwardly ofi'set and constituting a wall engaging flange to position the ci0sure within a container.

' 5. An endclosure iortelescoping within a container, comprising a wall member of fibrous material having an inturned flange at the periph.

ery thereof, an annular rim member also of fibrous material embracing the said closure wall member and having a portion i'or'insertion with- I have illustrated my improvements in' practical embodiments. I have not attempted'toillustrate other embodiments which might be desirable to adapt my invention to particular types of containers, as it is believed this disclosure will brous material closely embracing the edge of said closure wall member. and having a substantially cylindrical intermediate portion .trictionally fitting within said container, and inner and outer inturned' end portions of rounded section disposed in a'container, the inner end 0'! said rim member being turned inwardly into clamping engagement with said flange on said wall member, the outer end of said rim member being outwardly oiiset to provide a container engaging flange to position the closure within a container and thence tinned inwardly into a curved bead-like portion.

' 6. An end closure for telescoping within a container, comprising a wall member 01 fibrous material. a rim member also of fibrous material embracing the said closure wall memberv and having a portion for insertion within a container,the

in opposed clamping supporting engagement with said closure wall. member, the outer end portion being joined to said cylindrical intermediate portion by an outwardly ofiset portion constituting a wall engaging flange to position the closure. within the container. w

2. The combination with a container, of anend closure therefor telescoping within the container and comprising a disk-like wall member, of .fi-

brous material and a rim member also of fibrous and inner and outer inturned end portions disposed in opposed clamping supporting engageinent with said closure wall member. the outer end portion being outwardly oflset and constitutto position the closure ing a wall engaging flange within the container.

- 3. An end closure ior'telescoping within a container, comprising a disk-like wall member oi fibrous material and an annular rim member also or fibrous material closely embracing ths'edge or said closure wall member and having g eub t n.

Jmaterial closelyembracing the edge oi. said 010- I sure wall member and having an intermediate portion irictionally fitting within-said container,

forming a tube of fibrous material, inserting-the wail member within tubeand turning the. edges of the tube inwardly intoinner and outer 1 bead-like members with"their cd|'cs' in opposed retaining relation to opmsitesides of the wall member, and forming an outwardly oihet-fiange inner end of said rim member being turned inwardly and upwardly with its inturnededge in. supporting engagement with'said 'wali member,

the outer end or said rim member being outwardly oiiset to provide a container engaging flange to position, the closure thin a container and thence turned inwardly in a bead-like portion.

7. The method 0! making end closures oi fibrous material comprising the steps of forming a disk-like wall member of fibrous material and forming a-tube oi fibrous material, inserting the wall member within the tube and simultaneously turning the edges of the tube inwardly into inner f I and outer bead-like members oi'rounded sections with their edges in opposed clamping engagement with opposite sides of the wall member, and sim'ultaneously with such last named step iorming an outwardly projecting flange-like container end engaging'portion on the outer bead-like member. 1 v Y 8. The method or makingend closures of fibrous material comprising the steps of tanning a disk-like wall member or fibrous material'and like portion on the outer bead-lihe member. 

